Possibly motor bearing seized up?
Improvise a 12V bulb in place of the fuse, if bulb goes on and
off, at full brightness, when heater switch is operated, then
there is a chance the motor is getting a supply but it is
not turning.

Log in

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.